NIL HEARDRECEPTION LOG

The Squeaky Wheel

tier B · keyed-tone

3363.5 kHz USB · 2026-09-21 23:40:33Z · 10:00 · received at Brettnach F57320

Spectrogram of The Squeaky Wheel, 3363.5 kHz USB, 2026-09-21 23:40:33Z, 10:00: keyed-tone 87% · mixed 10% · carrier 3% · tone 390 Hz · keying 0.75 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.7 MB ⤓ Opus 2488 kB { }
What was heard
keyed-tone 87% · mixed 10% · carrier 3% · tone 390 Hz · keying 0.75 Hz depth 0.96 — dominant tone 390 Hz, keyed at 0.75 Hz (depth 0.96). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Brettnach F57320 (JN39GG) · vertical · reported SNR 47 dB — thanks to the operator. Receivers
Provenance
sha256 530a694aed69b0de8e6ddf4ef99f97d0f07436467f0e809620581d9e8ee65c84
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T2340Z-3363.5-squeaky-3363
Heard in the record
— linked once the record exists.
Licence
CC BY 4.0 — credit NIL HEARD / Reception Log. The recording is ours; the transmission is somebody else's. Descriptions describe sound, never content — why.
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